1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <binder/IUidObserver.h>
18
19 #include <binder/Parcel.h>
20
21 namespace android {
22
23 // ------------------------------------------------------------------------------------
24
25 class BpUidObserver : public BpInterface<IUidObserver>
26 {
27 public:
BpUidObserver(const sp<IBinder> & impl)28 explicit BpUidObserver(const sp<IBinder>& impl)
29 : BpInterface<IUidObserver>(impl)
30 {
31 }
32
onUidGone(uid_t uid,bool disabled)33 virtual void onUidGone(uid_t uid, bool disabled)
34 {
35 Parcel data, reply;
36 data.writeInterfaceToken(IUidObserver::getInterfaceDescriptor());
37 data.writeInt32((int32_t) uid);
38 data.writeInt32(disabled ? 1 : 0);
39 remote()->transact(ON_UID_GONE_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
40 }
41
onUidActive(uid_t uid)42 virtual void onUidActive(uid_t uid)
43 {
44 Parcel data, reply;
45 data.writeInterfaceToken(IUidObserver::getInterfaceDescriptor());
46 data.writeInt32((int32_t) uid);
47 remote()->transact(ON_UID_ACTIVE_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
48 }
49
onUidIdle(uid_t uid,bool disabled)50 virtual void onUidIdle(uid_t uid, bool disabled)
51 {
52 Parcel data, reply;
53 data.writeInterfaceToken(IUidObserver::getInterfaceDescriptor());
54 data.writeInt32((int32_t) uid);
55 data.writeInt32(disabled ? 1 : 0);
56 remote()->transact(ON_UID_IDLE_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
57 }
58
onUidStateChanged(uid_t uid,int32_t procState,int64_t procStateSeq,int32_t capability)59 virtual void onUidStateChanged(uid_t uid, int32_t procState, int64_t procStateSeq,
60 int32_t capability) {
61 Parcel data, reply;
62 data.writeInterfaceToken(IUidObserver::getInterfaceDescriptor());
63 data.writeInt32((int32_t) uid);
64 data.writeInt32(procState);
65 data.writeInt64(procStateSeq);
66 data.writeInt32(capability);
67 remote()->transact(ON_UID_STATE_CHANGED_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
68 }
69
onUidProcAdjChanged(uid_t uid,int32_t adj)70 virtual void onUidProcAdjChanged(uid_t uid, int32_t adj) {
71 Parcel data, reply;
72 data.writeInt32((int32_t)uid);
73 data.writeInt32((int32_t)adj);
74 remote()->transact(ON_UID_PROC_ADJ_CHANGED_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
75 }
76 };
77
78 // ----------------------------------------------------------------------
79
80 IMPLEMENT_META_INTERFACE(UidObserver, "android.app.IUidObserver")
81
82 // ----------------------------------------------------------------------
83
84 // NOLINTNEXTLINE(google-default-arguments)
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)85 status_t BnUidObserver::onTransact(
86 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
87 {
88 switch(code) {
89 case ON_UID_GONE_TRANSACTION: {
90 CHECK_INTERFACE(IUidObserver, data, reply);
91 uid_t uid = data.readInt32();
92 bool disabled = data.readInt32() == 1;
93 onUidGone(uid, disabled);
94 return NO_ERROR;
95 } break;
96
97 case ON_UID_ACTIVE_TRANSACTION: {
98 CHECK_INTERFACE(IUidObserver, data, reply);
99 uid_t uid = data.readInt32();
100 onUidActive(uid);
101 return NO_ERROR;
102 } break;
103
104 case ON_UID_IDLE_TRANSACTION: {
105 CHECK_INTERFACE(IUidObserver, data, reply);
106 uid_t uid = data.readInt32();
107 bool disabled = data.readInt32() == 1;
108 onUidIdle(uid, disabled);
109 return NO_ERROR;
110 } break;
111
112 case ON_UID_STATE_CHANGED_TRANSACTION: {
113 CHECK_INTERFACE(IUidObserver, data, reply);
114 uid_t uid = data.readInt32();
115 int32_t procState = data.readInt32();
116 int64_t procStateSeq = data.readInt64();
117 int32_t capability = data.readInt32();
118 onUidStateChanged(uid, procState, procStateSeq, capability);
119 return NO_ERROR;
120 } break;
121
122 case ON_UID_PROC_ADJ_CHANGED_TRANSACTION: {
123 CHECK_INTERFACE(IUidObserver, data, reply);
124 uid_t uid = data.readInt32();
125 int32_t adj = data.readInt32();
126 onUidProcAdjChanged(uid, adj);
127 return NO_ERROR;
128 } break;
129
130 default:
131 return BBinder::onTransact(code, data, reply, flags);
132 }
133 }
134
135 } // namespace android
136